Using the 4001 integrated circuit, this latching relay can employ any general-purpose transistor. The power supply is according to the relay with voltage up to 12 V.
This configuration was found in old documentation and is valid for most general purpose NPN...
This circuit uses a capacitor to store energy. The capacitor is charged by closing S1 by a moment. Them,...
This circuit was obtained from a Popular Electronics of the 80's. It is set to a certain pulse...